GB807021A - Improvements in rotary printing and duplicating machines - Google Patents
Improvements in rotary printing and duplicating machinesInfo
- Publication number
- GB807021A GB807021A GB1901855A GB1901855A GB807021A GB 807021 A GB807021 A GB 807021A GB 1901855 A GB1901855 A GB 1901855A GB 1901855 A GB1901855 A GB 1901855A GB 807021 A GB807021 A GB 807021A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- abutments
- rod
- edge
- bars
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
- B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
- B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
- B41F27/1237—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially perpendicular to support surface
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
807,021. Printing and stencilling machines. JONES & CO. Ltd. K. W. Oct. 1, 1956 [July 1, 1955], No. 19018/55. Class 100(2) In apparatus for holding backing sheets, flexible litho printing plates, duplicating stencils or like flexible sheets 10 on the cylinders of rotary duplicating and like printing machines, a narrow slot 2 is provided in the wall of the cylinder 1 through which the ends of the backing sheet or like can be passed so that abutments thereon can be engaged by abutments on two closely spaced bars 3, 4 rotatable in opposite directions in bearings in the cylinder ends so as to trap the juxtaposed ends of the sheet and its abutments between them. The bars are coupled by gears 7, 8 and preferably formed with grooves 5, 6 adapted to close upon a rod 13 passed through pockets 11, 12 formed in the opposite ends of the sheet or plate 10. Alternatively, the bars may have rectangular abutments for engaging the rod 13. The abutments on the sheet may comprise projectior.s or press-buttons formed on the sheet or plate itself. The rod 13 may be of flexible material and may co-operate with a single pocket formed in one edge of the sheet or plate or be fixed to one edge, the other edge being provided with a U-shaped fold for embracing the rod and pocket prior to engagement with the bars 3, 4, or as a further alternative, the rod may rest in a U-shaped fold on one edge of the sheet or plate which is embraced by a second U- shaped fold formed in the other edge. Rotation of the bars 3, 4 is effected by a cam 14, on a rotatable shaft 15, which engages a crankpin 16 on a crank 17 fast on the bar 4, the arrangement being adapted to hold the parts locked by friction, but other means may be employed for this purpose.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1901855A GB807021A (en) | 1955-07-01 | 1955-07-01 | Improvements in rotary printing and duplicating machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1901855A GB807021A (en) | 1955-07-01 | 1955-07-01 | Improvements in rotary printing and duplicating machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB807021A true GB807021A (en) | 1959-01-07 |
Family
ID=10122391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1901855A Expired GB807021A (en) | 1955-07-01 | 1955-07-01 | Improvements in rotary printing and duplicating machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB807021A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1265164B (en) * | 1965-10-02 | 1968-04-04 | Koenig & Bauer Schnellpressfab | Device for fastening flexible printing plates on forme cylinders of rotary printing machines |
US4643093A (en) * | 1985-03-01 | 1987-02-17 | Minnesota Mining And Manufacturing Company | Double-creased lithoplate and method of mounting on a web press |
-
1955
- 1955-07-01 GB GB1901855A patent/GB807021A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1265164B (en) * | 1965-10-02 | 1968-04-04 | Koenig & Bauer Schnellpressfab | Device for fastening flexible printing plates on forme cylinders of rotary printing machines |
US4643093A (en) * | 1985-03-01 | 1987-02-17 | Minnesota Mining And Manufacturing Company | Double-creased lithoplate and method of mounting on a web press |
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